<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>粒子时钟</title>
  </head>
  <style>
    * {
      margin: 0;
      padding: 0;
    }
    canvas {
      width: 100vw;
      height: 100vh;
      background: radial-gradient(#fff, #8c738c);
      display: block;
    }
  </style>
  <body>
    <canvas></canvas>
  </body>
  <script src="./index.js"></script>
</html>
